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Chapter5 Configuring WAN Connections
Configuring a Serial Connection
5-8
Cisco Router and Security Device Manager 2.5 User’s Guide
OL-4015-12
IP Address: Serial with HDLC or Frame Relay
Choose the method that the WAN interface will use to obtain an IP address. If
Frame Relay encapsulation is used, Cisco SDM creates a subinterface, and the IP
address is assigned to the subinterface Cisco SDM creates.
Field Reference
Table 5-7 describes the fields in this screen.
Table 5-6 Serial Connection with Point-to-Point Protocol
Element Description
Static IP Address If you choose Static IP Address, enter the IP address and subnet
mask or the network bits in the fields provided. For more
information, see IP Addresses and Subnet Masks.
IP Unnumbered Choose IP Unnumbered if you want the interface to share an IP
address that has already been assigned to another interface. Then
choose the interface whose IP address you want to use for the
interface you are configuring.
Easy IP (IP Negotiated) Choose Easy IP (IP Negotiated) if the router will obtain an IP
address through PPP/IPCP address negotiation.
Dynamic DNS Choose dynamic DNS if you want to update your DNS servers
automatically whenever the WAN interface IP address changes.
Click the Dynamic DNS button to configure dynamic DNS.
Table 5-7 Serial Connection with HDLC or Frame Relay Fields
Element Description
Static IP Address If you choose Static IP Address, enter the IP address and subnet
mask or the network bits in the fields provided. For more
information, see IP Addresses and Subnet Masks.